<template>
  <div class="mui-numbox" data-numbox-min="1" style="height:35px;">
    <button class="mui-btn mui-btn-numbox-minus" type="button">-</button> 
    <input id="test" class="mui-input-numbox" type="number" ref="numbox" :value="initcount" @change="countChanged" readonly> 
    <button class="mui-btn mui-btn-numbox-plus" type="button">+</button>    
  </div>
</template>
<script>
import mui from '../../lib/mui/js/mui.min.js';
export default {
  mounted() {
    //初始化数字选择框组件
    mui(".mui-numbox").numbox();
  },
  methods: {
    countChanged() {
      //每当数量值改变，则立即把最新的数量同步到购物车的store中，覆盖之前的数量值
      this.$store.commit("updateGoodsInfo", {
        id: this.goodsid,
        count: this.$refs.numbox.value
      })
    }
  },
  props: ["initcount", "goodsid"]
}
</script>
<style lang="scss" scoped>

</style>
